50217055105561 has 8 divisors (see below), whose sum is σ = 51386456468160. Its totient is φ = 49047724782672.

The previous prime is 50217055105559. The next prime is 50217055105601. The reversal of 50217055105561 is 16550155071205.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50217055105561 - 2¹ = 50217055105559 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50217055105661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16328365 + ... + 19158538.

It is an arithmetic number, because the mean of its divisors is an integer number (6423307058520).

Almost surely, 2^{50217055105561} is an apocalyptic number.

It is an amenable number.

50217055105561 is a deficient number, since it is larger than the sum of its proper divisors (1169401362599).

50217055105561 is a wasteful number, since it uses less digits than its factorization.

50217055105561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35519855.

The product of its (nonzero) digits is 262500, while the sum is 43.

The spelling of 50217055105561 in words is "fifty trillion, two hundred seventeen billion, fifty-five million, one hundred five thousand, five hundred sixty-one".